In a network using the go-back-n protocol with m = 3 and the sending window of size 7, the values of variables are sf = 62, sn = 66, and rn = 64. Assume that the network does not duplicate or reorder the packets. A. What are the sequence numbers of data packets in transit? B. What are the acknowledgment numbers of ack packets in transit?
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Explanation:
• Given Rn =64, this indicates the receiver is expecting a packet with sequence number 64.
• Given that Sf =62 and S n=66,this indicates the packet from 62 to 65 are transmitting and are waiting for acknowledgment as R n =64, the packets with sequence number 62 and 63 are already received by receiver.
• The packet number 64 and 65 are in transit from Sender to receiver.
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